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Experimental and field performance of PP band retrofitted masonry: evaluation of seismic behavior.

Heydariha, Jamshid Zohreh, Ghaednia, Hossein, Nayak,, Sanket, Das, Sreekanta, Bhattacharya, Suby and Dutta, Sekhar Chandra (2018) Experimental and field performance of PP band retrofitted masonry: evaluation of seismic behavior. Journal of Performance of Constructed Facilities, 33 (1), 04018086.

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Unreinforced masonry (URM) buildings exhibited extreme vulnerability during past earthquakes though these are shelters of majority population in many earthquake prone developing countries. Most of the current retrofitting techniques used for such structures are either expensive or requires highly skilled labor or sophisticated equipment for implementation. On the other hand, the retrofitting technique proposed in this paper is economical and easy-to-apply. This paper aims at examining the performance of the retrofitting technique using polypropylene (PP) band. The displacement controlled lateral deformation has been investigated experimentally. The monotonic load-displacement behaviors of URM wall and the wall retrofitted with PP band are compared. It was found that URM wall retrofitted by PP band improves the ductility and energy absorption capacity by three times, and two times, respectively. Performance of a full-scale masonry building retrofitted with PP band in Nepal during last Gorkha earthquake of April 25, 2015, has also been presented in this paper. It was observed that the PP band retrofitted masonry building survived while the nearby many buildings experienced severe damage and some of them collapsed. This study demonstrates the efficacy and practicability of use of PP band for improving seismic resistance of URM structure.

Item Type: Article
Divisions : Faculty of Engineering and Physical Sciences > Civil and Environmental Engineering
Authors :
Heydariha, Jamshid Zohreh
Ghaednia, Hossein
Nayak,, Sanket
Das, Sreekanta
Dutta, Sekhar Chandra
Date : 27 October 2018
DOI : 10.1061/(ASCE)CF.1943-5509.0001233
Copyright Disclaimer : Copyright 2018 American Society of Civil Engineers. This material may be downloaded for personal use only. Any other use requires prior permission of the American Society of Civil Engineers.
Uncontrolled Keywords : Unreinforced masonry; Retrofitting technique; PP band; Gorkha earthquake; Load-displacement behavior
Depositing User : Melanie Hughes
Date Deposited : 29 Aug 2018 13:30
Last Modified : 18 Jun 2019 10:49

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